Alyssa vs Sianna
Alyssa and Siannacompared on official birth-registration statistics and Namewise's recorded data. This page states what each name's record shows — it never picks a winner or scores one name against the other.
Head to head
Ranks are only compared within one published list and one year. Two ranks from different years, from a boys' and a girls' list, or from different registrars are not comparable, so they are not placed side by side.
England and Wales · Girls
In 2025, Alyssa was ranked #325 and Sianna #1809 among girls in England and Wales.
Republic of Ireland · Girls
In 2023, Alyssa was ranked #339 and Sianna #625 among girls in Republic of Ireland.
Alyssa and Sianna over time
Alyssa and Sianna appear together in 2 published lists, across 37 years of shared records. Alyssa held the stronger position in more years in 2 of them, Sianna in 0.
In none of those lists did their order change and stay changed.
Each reached its own highest recorded position first in 1 of the lists they share.
Counted list by list. Two names in the same published list are measured on the same scale in the same year, so those comparisons are real — but positions from different lists are not, so nothing here is combined into an overall standing.
List by list
England and Wales · Girls29 shared years, 1996–2025
Alyssa held the stronger position in 29 of those years, Sianna in 0.
Highest recorded here: Alyssa #144 in 2004, Sianna #865 in 2013.
The order between them never changed and held in this list.
Most recent shared year, 2025: Alyssa #325, Sianna #1809.
Republic of Ireland · Girls8 shared years, 2011–2023
Alyssa held the stronger position in 8 of those years, Sianna in 0.
Highest recorded here: Alyssa #186 in 2022, Sianna #491 in 2013.
The order between them never changed and held in this list.
Most recent shared year, 2023: Alyssa #339, Sianna #625.
Two names moving past each other in a ranking is a fact about the ranking. Namewise does not claim one name displaced the other, that families chose between them, or that either influenced the other — none of that is in this data.
Where to go next
Comparisons that share a name, a rule or a published list with this one. Each is an existing comparison page with its own evidence — nothing here says these pairs are alike.
Other comparisons involving Alyssa
Pairs where Alyssa shares a published list with another name, each measured inside one registrar's own list.
- Chloe vs Alyssa
Both reached their highest recorded position in New South Wales, Australia · Girls within 2 years — Chloe #1 in 2006, Alyssa #25 in 2004.
Chloe · Alyssa · 23 shared years, 1990–2019 · Peaked in the same years
- Emma vs Alyssa
Both reached their highest recorded position in New Zealand · Girls within 2 years — Emma #1 in 2003, Alyssa #37 in 2003.
Emma · Alyssa · 15 shared years, 1999–2013 · Peaked in the same years
- Lara vs Alyssa
Across 21 shared years in New South Wales, Australia · Girls, Lara and Alyssa averaged 6.5 places apart, ending at #68 and #75.
Lara · Alyssa · 21 shared years, 1999–2019 · Closest over the longest run
- Madison vs Alyssa
Across 20 shared years in New South Wales, Australia · Girls, Madison and Alyssa averaged 12.8 places apart, ending at #89 and #82.
Madison · Alyssa · 20 shared years, 1999–2018 · Closest over the longest run
Side by side
| Field | Alyssa | Sianna |
|---|---|---|
| Record type | Official statistical record (evidence-only) | Official statistical record (evidence-only) |
| Gender usage | female | female |
| Meaning | Not yet recorded | Not yet recorded |
| Origin | Not yet recorded | Not yet recorded |
| Pronunciation | Not yet recorded | Not yet recorded |
| Syllables | 3 | 2 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NZ | GB-ENW, IE |
| Most recent popularity observation | England and Wales · Girls #325 (2025) | England and Wales · Girls #1809 (2025) |
| Pronunciation clarity (demonstration score) | Not yet recorded | Not yet recorded |
| Spelling simplicity (demonstration score) | 88/100 | 88/100 |
| International familiarity (demonstration score) | 100/100 | 60/100 |
| Data Confidence | medium | medium |
What the data shows
- Alyssa has 3 syllables, compared with 2 for Sianna.
- Both names have recorded usage in GB-ENW, IE.
How each name got here
Alyssa
Popularity journey
First recorded1990
First recorded at #90 among girls in New South Wales, Australia in 1990 — the earliest year that source publishes this name, not necessarily the earliest it was used.
New South Wales, Australia · Girls
Highest recorded1990–2019
Highest recorded position: #25 among girls in New South Wales, Australia, in 2004 (recorded 1990–2019).
New South Wales, Australia · Girls
Most recent2025
Most recently recorded at #325 among girls in England and Wales, in 2025.
England and Wales · Girls
Sianna
Popularity journey
First recorded1996
First recorded at #2350 among girls in England and Wales in 1996 — the earliest year that source publishes this name, not necessarily the earliest it was used.
England and Wales · Girls
Highest recorded2011–2023
Highest recorded position: #491 among girls in Republic of Ireland, in 2013 (recorded 2011–2023).
Republic of Ireland · Girls
Most recent2025
Most recently recorded at #1809 among girls in England and Wales, in 2025.
England and Wales · Girls